It's really sad when you lose someone who means so much but... Do you really think it's worth dying for?
She was probably happy alive. Why do you think she would want you to lose that? You only live once, don't waste what you have and what she does not.
I really hope to hear from you again and I hope you're in good health when I do.
Just think of all of the people in this world who mean something to you, and think of how it feels to lose them. Suicide is an easy way out but it's a selfish way of giving up.